Pneumatic liquid-dispensing jar.



Patented Nov. 7, |899. F. H. LIPPINGOTT & W. MOHLUK.

PNEUMATIC LIQUID DISPENSING JAR.

(No Model.) (Applation led Mar. 26, 189B.)

Witnesses. Inventors,

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Attorney.

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UNITED STAT-ns PATENT OFFICE.

FISHER H. LIPPINOOTT AND WILLIAM MORLOK, OF PHILADELPHIA, PENN-SYLVANIA, ASSIGNORS TO THE AMERICAN SODA FOUNTAIN COMPANY,

OF TRENTON, NEW JERSEY.

PNEUMATIC LIQUID-DISPENSING JAR.

SPECIFICATION forming part f Letters Patent N0. 636,537, dated November7, 1899. Application filed March 26,1898. Serial-No. 675,249. (Nomodel.)

.To all whom it may concern:

Beit known that we, FISHER H. LIPBIN- GOTT and WILLIAM MoRLoK, citizensof the United States, residing in the city and county of Philadelphia,State of Pennsylvania, have invented certain new and useful Improvementsin Pneumatic Liquid-Dispensing Jars,

of which the following is la full, clear, and exact description,reference being had to the ac- Io companying drawings, of which--'Figure l is a vertical section through the middle of our jar; Fig. 2, atop plan View; and Fig. 3, a section on line a: w, Fig. 1.

The object of this invention is to provide, in connection with asuitable jar or the like for containing Syrups or other liquids, meanswhereby a desired quantity may be readily and conveniently forced out ofthe jar by airpressure.

The invention broadly considered, comprises the combination of a jar orother suitable vessel, atube, open at the topv and bottom, suspendedtherein,'a second tube also suspended in the jar and communicating with2 5 the outer air, and means for compressing the body of air within thefirst-mentioned tube and forcing a quantity thereof out of the lower endof the latter into the jar, wherebyr a portion of the liquid containedin the jar will be 3o forced out of the same by way of the said secondtube by pneumatic pressure, as hereinafter described.

The invention further comprises certain particular features orcombinations herein- 3 5 after pointed out.

Referring to the accompanying drawings, which represent a form of ourinvention which we have put into practice, l designates asecured, inthis instance being bent around and under a peripheral ange 3a ofsupport 3, and is held in place by means of the cap 4, which is providedwith a horizontally-extending offset 4a. When the cap is screwed down,the rubber is compressed between the offset and the edge of the top ofthe jar, as seen in Fig. l, thus making an air-tight joint. To themiddle part or crown of the diaphragm is secured the lower end of atubular rod or plunger 6, that is adapted to be reciprocated verticallyin a guide-hole in cap 4. There is a knob 6a on the upper end of theplunger for convenience in operating the latter. One or more apertures4b in the cap serve to admit air between the latter and the diaphragm.

i is a second tube, hereinafter termed the outlet-tube, suspended withinthe jar, and whose lower end extends near to the bottom of the jar,audits upper end projects through an air-tight aperture in the side ofthe upper 7o part of the jar and has connectedy thereto a nozzle 7 a,whose end is preferably downwardly turned, as seen.

Having thus described the construction of the invention, its mode ofoperation is as follows The cap 4 and adjuncts, as also the support 3and tube 2, ,having been detached and removed from the jar, the latteris filled with the syrup or other liquid. These parts are then replaced.The liquid will obviously 8o stand at the same level in the two tubesand exterior thereto within the jar. When it is desired to draw some ofthe syrup from the jar, the nger or hand is placed upon the top ofthetubular plunger 6, so as to close the same, and then the plunger isdepressed. This carries down the diaphragm 5 and so compresses theunderlying air, and consequently the syrup, or a portion thereof, willbe forced out of the lower end of the tube 2 into the jar-space, andhaving no other outlet it escapes by way of the tube 7 and may bereceived in a cup or tumbler placed 4beneath the downturned end of thenozzle 7a. Upon now opening the upper end of the plunger 95 the liquidwill come to a certain and the same height within the two tubes lowerthan it was before; but that within the jar exterior to said tubes willremain at substantially the same height that it was before theoperation. This is because the upper ends of the said tubes are open tothe air, while the upper part of the jar immediately below the support 3is closed thereto. It being understood that the plunger and diaphragmhave been rst brought to the elevated position either by drawing up theplunger or allowing it to be brought up by the elasticity of thediaphragm, if the plunger be given another downward stroke, with thehand or finger stopping the opening therein, as before, some of theliquid will again be expelled from tube 2 and escape from the nozzle ofthe outlettube, as before, and upon unsealing the end of the plunger theliquid will come to alevel within the two tubes lower than before, andthe level exterior to the tubes will still remain substantiallyunchanged. Finally, at the next or a subsequent depression of theplunger and diaphragm all of the liquid within tube 2 will be forced outtherefrom; but the quantity thus expelled may not suiiice to cause theliquid to rise high enough in tube 7. to escape; but, however, as theplunger descends, thus compressing the body of air within tube 2 abovethe liquid therein, a quantity of this compressed air will be forced outof the lower end of said tube and rise to the air-tight space above thetop of the body of the liquid exterior to the two tubes and so establisha pressure upon that body of the liquid. This pressure may, however, notbe sufficient to compel the outflow of the liquid from the tube 7. Ifnot, the operation is repeated as may be necessary to obtain suchpressure. At each repetition of this air-supplying operation the levelof the liquid exterior to the tubes will fall, while that within thelatter will relatively rise.

If the capacity of the space below the diaphragm and the top of tube 2be greater than the capacity of the said tube, and the jar being full ofthe liquid, the tube would be emptied at the first stroke and (if it bedesired to then expel so much of the liquid) a quantity of the air willalso be forced out into the jar, and the same with each repetition ofthe operation.

By suitably operating the rod and depressing the diaphragm any desiredquantity of the liquid may of course be forced out from the outlet-tube.

We remark,that although not essentiahit is preferred that the diameteror capacity of the tube 2 should be greater than that of the tube 7. Incase the device is to be used with ordinary syrups, as for soda-waterfountains, we would have tube 2 about double the capacity of tube 7, asin the construction shown in the drawings.

In order to prevent air forced from the tube 2 from, so to say, jumpinr7across the interval between said tube and the tube 7, and thus escapingup through the latter, we usually form a vertical guard or projection 8in .the bottom of the jar, extending above the line of the lower end oftube 7.

To secure the full effect of the rubber diaphragm 5 in its descent, wegenerally secure to the plunger G, immediately above the diaphragm, aplate 9 of suitable diameter with upturned periphery, as shown, wherebywhen the diaphragm is depressed it will take the cup-shaped formindicated by dotted lines in Fig. l.

IVe remark that We do not limit ourselves to the precise construction ofthe invention shown in the drawings or of any of the elements thereof.We have simply shown and described that form which we have found bypractical experience to be a suitable and convenient one.

Having thus described our invention, we'

claim as new and desire to secure by Letters Patentl. In an apparatusfor the purpose recited, the combination with a jar closed at its top,of an air-inlet tube suspended in said jar and extending to a pointbelow the surface of the liquid therein, an independent liquid-outlettube also arranged within the jar and also extending to a point belowthe surface of the liquid therein, a flexible diaphragm for forcing air.into said air-inlet tube, and a tubular plunger for operating saiddiaphragm, substantially as described.

2. In an apparatus for the purpose recited, the combination with a jarclosed at its top, of an air-inlet tube suspended therein andcommunicating normally with the external air, said tube extending to apoint below the surface of the liquid in the jar, an independentliquid-outlet tube also arranged within the jar and also extending to apoint below the surface of the liquid therein, a flexibleV diaphragm forforcing the air out of the lower end of the air-inlet tube, and atubular plunger for operating said diaphragm, substantially asdescribed.

3. In an apparatus for the purpose recited, the combination with thejar, of the outlettube, the tube, 2, terminating below the level of theliquid in the jar, the air-tight support from which it is suspended, theflexible diaphragm mounted above said support, and thevertically-movable tubular plunger connected to said diaphragm;substantially as and for the purpose set forth.

4. In an apparatus for the purpose recited, the combination with thejar, closed at the top, the tube, suspended therein having its lower endadjacent to the bottom of said jar, and its upper end communicatingnormally with the external air; the outlet-tube having its lower endadjacent to the bottom of the jar, means for forcing the air out of thelower end of the first-mentioned tube, and the detlector for preventingescape of air into the outlettube, substantially as described.

5. The combination with a jar closed at its IOO IIO

top, of the independent air-inlet and liquidfixed our signatures this16th day of March, outlet tubes Within said jar, a. flexible dia.- A. D.1898.

phragm for forcing air through the air-inlet ,1 tube and through theliquid for accumulation O l T' at the upper portion of the jar, and a.tubular plunger for operating said diaphragm, sub- Witnesses: stantialiyas described. C. E. PARKER,

In testimony whereof We have hereunto af- WALTER C. PUSEY.

